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Cucurbitacin D inhibits NF-κB signaling in MCF7/ADR cells. MCF7/ADR cells were treated with cucurbitacin D (0.5, 2 μg/mL) in the presence and absence of doxorubicin (1 μM). Nuclear and cytosolic extracts of cultured cells were then prepared and analyzed by Western blot to measure NF-κB levels
